Title:
Manufacture of plastic articles having spaced shells with reinforced foam filling
United States Patent 3013922

Inventors:
Fisher, Richard T.
Publication Date:
12/19/1961
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Assignee:
FISHER PIERCE CO INC
Primary Class:
Other Classes:
220/592.250, 29/460, 220/902, 114/348, 280/832, 264/46.700, 264/261, 156/79, 264/45.300
International Classes:
B29C44/12; B63B3/00; B29C44/02
US Patent References:
2454719Method of making cored laminated plastic sheets
2482798Aircraft wing and method of manufacture
2519036Method of molding cellular articles
2706311Process for preparing foamed structures
2728702Composite cellular plastic structure
2744042Laminated panels
2755216Process for forming a multi-ducted shell
2767461Method of making propeller or rotor blade
2773792Method of making a laminated structure
2855021Process for producing plates, sheels and shaped elements
Foreign References:
FR1082060A